Issued Patents All Time
Showing 26–28 of 28 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5627610 | Self-locking nut for eye glasses having an unthreaded hole with vertical channels | Koreto Marui, Ryuichi Ohtsuki | 1997-05-06 |
| 5578218 | Brine treatment method | Terumi Matsuoka, Izumi Kawamura | 1996-11-26 |
| 5508758 | Self-locking nut with threaded and self-locking members, useful for eye glasses, and a nut tightener and a nut supplier for same | Koreto Marui, Ryuichi Ohtsuki | 1996-04-16 |